Add software arch

software-arch.md

@@ -0,0 +1,23 @@
+# Requirements
+## Must Have
+- Display control
+- NFC Card reading
+- save cards on data flash
+- navigation between cards
+
+## Optional
+- Standalone Wifi 
+- Wifi Credentials login
+
+# Tools
+- Simulation: WokWi
+
+# Navigation
+- Steuerkreuz 
+  - right, left: next/previous card
+- scan button
+
+## Menu
+- Card Overview
+- System Information
+-